Help me understand the specs on a neumotor.

[Patrick]

You won't need anything bigger than a 1515 on a small track. If your track is really small I'd even consider a 1512, but I'd try to see what people that have use 1512's in truggies think first.
I'd pick something around 1500-1700kv for 6s. You might not even need that much if you can't use much more than 30mph.